<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>去掉http协议的jpg文件的协议头</title>
</head>
<body>
替换前:
http://img.host.com/images/fasdfkl.jpg
https://img.host.com/images/dlskjf.jpg
http://img.host.com/images/asldkfjsldfj.jpg
http://img.host.com/images/qiwdss.png
http://img.host.com/images/usdfl.jpg
https://img.host.com/images/sdflj.png
http://img.host.com/images/asdlfjsfadflkj.gif


正则语句：http:(\/\/.+\.jpg)
		replace with: $1

替换后：
//img.host.com/images/fasdfkl.jpg
https://img.host.com/images/dlskjf.jpg
//img.host.com/images/asldkfjsldfj.jpg
http://img.host.com/images/qiwdss.png
//img.host.com/images/usdfl.jpg
https://img.host.com/images/sdflj.png
http://img.host.com/images/asdlfjsfadflkj.gif
</body>
</html>